Mostrando ítems 181-200 de 474

    • Six hundred years of South American tree rings reveal an increase in severe hydroclimatic events since mid-20th century 

      Morales, Mariano S.; Cook, Edward R.; Barichivich, Jonathan; Christie, Duncan A.; Villalba, Ricardo; LeQuesne, Carlos; Srur, Ana M.; Ferrero, M. Eugenia; González-Reyes, Alvaro [Univ Mayor, Fac Ciencias, Hemera Ctr Observac Tierra, Escuela Ingn Forestal, Chile]; Couvreux, Fleur; Matskovsky, Vladimir; Aravena, Juan C.; Lara, Antonio; Mundo, Ignacio A.; Rojas, Facundo; Prieto, Maria R.; Smerdon, Jason E.; Bianchi, Lucas O.; Masiokas, Mariano H.; Urrutia-Jalabert, Rocio; Rodriguez-Caton, Milagros; Muñoz, Ariel A.; Rojas-Badilla, Moisés; Alvarez, Claudio; López, Lidio; Luckman, Brian H.; Lister, David; Harris, Ian; Jones, Philip D.; Williams, A. Park; Velazquez, Gonzalo; Aliste, Diego; Aguilera-Betti, Isabella; Marcotti, Eugenia; Flores, Felipe; Muñoz, Tomás; Cuq, Emilio; Boninsegna, José A. (National Academy of Sciences, 2020-07)
      South American (SA) societies are highly vulnerable to droughts and pluvials, but lack of long-term climate observations severely limits our understanding of the global processes driving climatic variability in the region. ...
    • Seasonality Analysis of Sentinel-1 and ALOS-2/PALSAR-2 Backscattered Power over Salar de Aguas Calientes Sur, Chile 

      Delsouc, Analia [Univ Mayor, Teledetecc, Escuela Ingn Forestal, Fac Ciencias, Chile]; Barber, Matias; Gallaud, Audrey; Grings, Francisco; Vidal-Paez, Paulina [Univ Mayor, Teledetecc, Escuela Ingn Forestal, Fac Ciencias, Chile]; Pérez-Martínez, Waldo [Univ Mayor, Fac Ciencias, Hemera Ctr Observac Tierra, Escuela Ingn Forestal, Chile]; Briceno-De-Urbaneja, Idania [Univ Mayor, Fac Ciencias, Hemera Ctr Observac Tierra, Escuela Ingn Forestal, Chile] (MDPI Multidisciplinary Digital Publishing Institute, 2020-03)
      Seasonal changes control the development of salt crust over the Salar de Aguas Calientes Sur located in Andes Highlands, Chile. Precipitations throughout the Altiplanic winter (December to March) and austral winter (June ...
    • Schwann cell reprogramming into repair cells increases miRNA-21 expression in exosomes promoting axonal growth 

      López-Leal, Rodrigo [Univ Mayor, Fac & Sci, Ctr Integrat Biol, Chile]; Díaz-Viraque, Florencia; Catalán, Romina J. [Univ Mayor, Fac & Sci, Ctr Integrat Biol, Chile]; Saquel, Cristian [Univ Mayor, Fac & Sci, Ctr Integrat Biol, Chile]; Enright, Anton; Iraola, Gregorio [Univ Mayor, Fac & Sci, Ctr Integrat Biol, Chile]; Court, Felipe A. [Univ Mayor, Fac Sci, Ctr Integrat Biol, Chile] (Company of Biologists Ltd, 2020-06)
      Functional recovery after peripheral nerve damage is dependent on the reprogramming of differentiated Schwann cells (dSCs) into repair Schwann cells (rSCs), which promotes axonal regeneration and tissue homeostasis. ...
    • Effect of bokashi improved with rock phosphate on parsley cultivation under organic greenhouse management 

      Maass, Vicente [Univ Mayor, Fac Ciencias Silvoagr, Chile]; Céspedes, Cecilia; Cárdenas, Claudio (Instituto de Investigaciones Agropecuarias, INIA, 2020-09)
      The application of stabilized organic matter to the soil is essential for the sustainability of a production system. Bokashi is a biofertilizer produced by the aerobic decomposition of organic matter that contributes to ...
    • Effect of a Single Nutritional Intervention Previous to a Critical Period of Fat Gain in University Students with Overweight and Obesity: A Randomized Controlled Trial 

      Hernández-Jana, Sam; Huber-Perez, Tamara; Palma-Leal, Ximena; Guerrero-Ibacache, Paola; Campos-Nuñez, Valentina; Zavala-Crichton, Juan Pablo; Jorquera-Aguilera, Carlos [Univ Mayor, Fac Sci, Sch Nutr & Dietet, Chile]; Sadarangani, Kabir P.; Rodríguez-Rodríguez, Fernando; Cristi-Montero, Carlos (MDPI Multidisciplinary Digital Publishing Institute, 2020-07)
      Background: the present study aimed to investigate the effects of a single nutritional preventive session previous to a critical period linked to fat gain in university students with overweightness and obesity, emulating ...
    • Dynamics of Rydberg excitations and quantum correlations in an atomic array coupled to a photonic crystal waveguide 

      Chougale, Yashwant; Talukdar, Jugal; Ramos, Tomas [Univ Mayor, Fac Estudios Interdisciplinarios, DAiTA Lab, Chile]; Nath, Rejish (American Physical Society, 2020-08)
      We study the dynamics of up to two Rydberg excitations and the correlation growth in a chain of atoms coupled to a photonic crystal waveguide. In this setup, an excitation can hop from one atom to another via exponentially ...
    • Dormant but Active: Chilling Accumulation Modulates the Epigenome and Transcriptome ofPrunus aviumDuring Bud Dormancy 

      Rothkegel, Karin; Sandoval, Paula; Soto, Esteban; Ulloa, Lissette; Riveros, Anibal; Lillo-Carmona, Victoria; Caceres-Molina, Javier; Almeida, Andrea Miyasaka [Univ Mayor, Fac Ciencias, Ctr Genom & Bioinformat, Chile]; Meneses, Claudio (Frontiers Media S.A., 2020-07)
      Temperate deciduous fruit tree species like sweet cherry (Prunus avium) require long periods of low temperatures to trigger dormancy release and flowering. In addition to sequence-based genetic diversity, epigenetic variation ...
    • Concerted Action of AMPK and Sirtuin-1 Induces Mitochondrial Fragmentation Upon Inhibition of Ca(2+)Transfer to Mitochondria 

      Lovy, Alenka [Univ Mayor, Ctr Integrat Biol, Fac Sci, Chile]; Ahumada-Castro, Ulises [Univ Mayor, Ctr Integrat Biol, Fac Sci, Chile]; Bustos, Galdo [Univ Mayor, Fac Sci, Ctr Integrat Biol, Chile]; Farias, Paula [Univ Mayor, Fac Sci, Ctr Integrat Biol, Chile]; Gonzalez-Billault, Christian [Univ Mayor, Fac Sci, Gerosci Ctr Brain Hlth & Metab, Chile]; Molgo, Jordi; Cardenas, Cesar [Univ Mayor, Fac Sci, Ctr Integrat Biol, Chile] (Frontiers Media S.A., 2020-05)
      Mitochondria are highly dynamic organelles constantly undergoing fusion and fission. Ca(2+)regulates many aspects of mitochondrial physiology by modulating the activity of several mitochondrial proteins. We previously ...
    • Communication Strategies To Enhance HIV/STI Prevention, Sexual and Reproductive Health, and Safety Among Migrant Sex Workers at the Mexico-Guatemala Border 

      Febres-Cordero, Belen; Brouwer, Kimberly C.; Rocha Jimenez, Teresita [Univ Mayor, Fac Humanidades, Soc & Hlth Res Ctr, Chile]; Fernandez-Casanueva, Carmen; Morales-Miranda, Sonia; Goldenberg, Shira M. (Johns Hopkins University Press, 2020-05)
      Communication-based interventions have been linked to improved health and social outcomes among underserved populations. Migrant women in sex work face serious health and social inequities, including risks of HIV and other ...
    • Sources and diffusive air-water exchange of polycyclic aromatic hydrocarbons in an oligotrophic North-Patagonian lake 

      Tucca, Felipe; Luarte, Thais [Univ Mayor, Ctr Genom Ecol & Environm, GEMA, Chile]; Nimptsch, Jorge; Woelfl, Stefan; Pozo, Karla; Casas, Gemma; Dachs, Jordi; Barra, Ricardo; Chiang, Gustavo; Galban-Malagón, Cristóbal [Univ Mayor, Ctr Genom Ecol & Environm, GEMA, Chile] (Elsevier, 2020-10)
      Polycyclic aromatic hydrocarbons (PAHs) are semivolatile organic compounds of environmental concern. This study aims to investigate the influence of local sources of anthropogenic PAHs and their air-water exchange fluxes ...
    • Spatio-Temporal Variation of the Urban Heat Island in Santiago, Chile during Summers 2005-2017 

      Montaner-Fernández, Daniel [Univ Mayor, Teledetecc, Escuela Ingn Forestal, Fac Ciencias, Chile]; Morales-Salinas, Luis; Rodríguez, José Sobrino; Cárdenas-Jirón, Luz; Huete, Alfredo; Fuentes-Jaque, Guillermo; Pérez-Martínez, Waldo; Cabezas, Julián (MDPI Multidisciplinary Digital Publishing Institute, 2020-10)
      Urban heat islands (UHIs) can present significant risks to human health. Santiago, Chile has around 7 million residents, concentrated in an average density of 480 people/km(2). During the last few summer seasons, the highest ...
    • Distinct oxygen environments shape picoeukaryote assemblages thriving oxygen minimum zone waters off central Chile 

      De la Iglesia, Rodrigo; Echeñique-Subiabre, Isidora [Univ Mayor, Gema Ctr Genom Ecol & Environm, Fac Sci, Chile]; Rodríguez-Marconi, Susana [Univ Mayor, Gema Ctr Genom Ecol & Environm, Fac Sci, Chile]; Pablo Espinoza, Juan; von Dassow, Peter; Ulloa, Osvaldo; Trefault, Nicole [Univ Mayor, Gema Ctr Genom Ecol & Environm, Fac Sci, Chile] (Oxford University Press, 2020-09)
      Oxygen minimum zones (OMZs) support ocean biogeochemical cycles of global importance. The OMZ off central Chile is characterized by seasonally variable oxygen concentrations due to upwelling events. Bacterial and archaeal ...
    • Connectivity of bacterial assemblages along the Loa River in the Atacama Desert, Chile 

      Zarate, Ana; Dorador, Cristina; Araya, Rubén; Guajardo, Mariela [Univ Mayor, Fac Ciencias, Genom Integrat, Chile]; Florez, July Z.; Icaza, Gonzalo; Cornejo, Diego; Valdés, Jorge (PeerJ Inc., 2020-10)
      The Loa River is the only perennial artery that crosses the Atacama Desert in northern Chile. It plays an important role in the ecological and economic development of the most water-stressed region, revealing the impact ...
    • Bacterially produced metabolites protect C. elegans neurons from degeneration 

      Urrutia, Arles; García-Angulo, Víctor A. [Univ Mayor, Fac Ciencias, Ctr Genom & Bioinformat, Chile]; Fuentes, Andres [Univ Mayor, Fac Ciencias, Ctr Genom & Bioinformat, Chile]; Caneo, Mauricio; Legue, Marcela [Univ Mayor, Fac Ciencias, Ctr Genom Integrat, Chile]; Urquiza, Sebastian [Univ Mayor, Fac Ciencias, Ctr Genom Integrat, Chile]; Delgado, Scarlett E. [Univ Mayor, Fac Ciencias, Ctr Genom & Bioinformat, Chile]; Ugalde, Juan [Univ Mayor, Fac Ciencias, Ctr Genom & Bioinformat, Chile]; Burdisso, Paula; Calixto, Andrea [Univ Mayor, Fac Ciencias, Ctr Genom & Bioinformat, Chile] (Public Library of Science, 2020-03)
      Caenorhabditis elegans and its cognate bacterial diet comprise a reliable, widespread model to study diet and microbiota effects on host physiology. Nonetheless, how diet influences the rate at which neurons die remains ...
    • Nanoindentation of polycrystalline Pd hollow nanoparticles: Grain size role 

      Pinto, Benjamin [Univ Mayor, Escuela Construcc, Chile]; Valencia, Felipe J. [Univ Mayor, Fac Estudios Interdisciplinarios, Ctr Invest DAiTA Lab, Chile]; Kiwi, Miguel; Ruestes, Carlos J.; Bringa, Eduardo M. [Univ Mayor, Fac Ciencias, Ctr Nanotecnol Aplicada, Chile]; Rogan, José (Elsevier, 2020-06)
      Polycrystalline hollow nanoparticles present a unique combination of strength and flexibility. However, the exact role displayed by their grain structure in mechanical properties has not been yet fully understood. Here, ...
    • Melatonin triggers metabolic and gene expression changes leading to improved quality traits of two sweet cherry cultivars during cold storage 

      Miranda, Simón [Univ Mayor, Ctr Tecnol Recursos Vegetales, Chile]; Vilches, Paulina [Univ Mayor, Ctr Tecnol Recursos Vegetales, Chile]; Suazo, Miriam; Pavez, Leonardo; García, Katherine; Méndez, Marco A.; González, Mauricio; Meisel, Lee A.; Defilippi, Bruno G.; Pozo, Talia del [Univ Mayor, Ctr Tecnol Recursos Vegetates, Escuela Agron, Chile] (Elsevier Ltd., 2020-07)
      Sweet cherry is a valuable non-climacteric fruit with elevated phytonutrients, whose fruit quality attributes are prone to rapid deterioration after harvest, especially peel damage and water loss of stem. Here the metabolic ...
    • Magnon valley Hall effect in CrI3-based van der Waals heterostructures 

      Hidalgo-Sacoto, R.; Gonzalez, R., I [Univ Mayor, Fac Ciencias, Ctr Nanotecnol Aplicada, Chile]; Vogel, E. E.; Allende, S.; Mella, José D.; Cárdenas, C.; Troncoso, Roberto E.; Muñoz, F. (American Physical Society, 2020-05)
      Magnonic excitations in the two-dimensional (2D) van der Waals (vdW) ferromagnet chromium triiodide (CrI3) are studied. We find that bulk magnons exhibit a nontrivial topological band structure without the need for ...
    • Localising urban sustainability indicators: The CEDEUS indicator set, and lessons from an expert-driven process 

      Steiniger, Stefan; Wagemann, Elizabeth [Univ Mayor, Fac Humanidades, Escuela Arquitectura, Chile]; Barrera, Francisco de la; Molinos-Senante, María; Villegas, Rodrigo; Fuente, Helen de la; Vives, Alejandra; Arce, Guillermo; Herrera, Juan-Carlos; Carrasco, Juan-Antonio; Pasten, Pablo A.; Muñoz, Juan-Carlos; Barton, Jonathan R. (Elsevier Ltd., 2020-06)
      The development and application of urban sustainability indicators has gained momentum in recent years, especially since the generation of specific urban indicators for the Agenda 2030. Urban sustainability is a broad ...
    • Structural Relaxation and Crystalline Phase Effects on the Exchange Bias Phenomenon in FeF2/Fe Core/Shell Nanoparticles 

      Velásquez, Ever A.; Mazo-Zuluaga, Johan; Tangarife, Edwin [Univ Mayor, Fac Ciencias, Ctr Nanotecnol Aplicada, Chile]; Mejia-López, José (John Wiley and Sons Ltd, 2020-09)
      In this study, the power of first-principles methods along with molecular dynamics and atomistic Monte Carlo simulations is employed to elucidate the effects of the structural relaxation on the exchange bias (EB) behavior ...
    • Estructura y regeneración de bosques de Prumnopitys andina en los Andes del sur de Chile 

      Vargas-Gaete, Rodrigo; Salas-Eljatib, Christian [Univ Mayor, Ctr Modelac & Monitored Ecosistemas, Chile]; Penneckamp, Diego; Neira, Zoia; Cristina Diez, M.; Vargas-Picon, Ricardo (Universidad de Concepcion, 2020-06)
      Prumnopitys andina (lleuque) es una especie de conífera con una distribución restringida en Chile y Argentina. A pesar de su importancia ecológica, los conocimientos sobre la estructura y dinámica de los bosques donde crece ...


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